Merge branch 'vxlan_bnx2x_offload'

Dmitry Kravkov says: ==================== The series fixes GSO flags in vxlan xmit code and adds appropriate code for bnx2x driver to utilize fw support for UDP tunneling protocols offload. Netperf's results below show improvement in throughput between two vxlan interfaces: before: MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 9.0.0.2 (9.0.0.2) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.20 228.73 after: MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 9.0.0.2 (9.0.0.2) port 0 AF_INET Recv Send Send Socket Socket Message Elapsed Size Size Size Time Throughput bytes bytes bytes secs. 10^6bits/sec 87380 16384 16384 10.00 3314.75 ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Apr 29, 2013 · b807a3d · b807a3d
2 parents 94dace1 + 65bc0cf
commit b807a3d
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Showing 3 changed files with 8 additions and 3 deletions.
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3530,6 +3530,11 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb,
 			ETH_TX_PARSE_2ND_BD_IP_HDR_LEN_OUTER_W_SHIFT) |
 		((skb->protocol == cpu_to_be16(ETH_P_8021Q)) <<
 			ETH_TX_PARSE_2ND_BD_LLC_SNAP_EN_SHIFT);
+
+	if (ip_hdr(skb)->protocol == IPPROTO_UDP) {
+		SET_FLAG(*global_data, ETH_TX_PARSE_2ND_BD_TUNNEL_UDP_EXIST, 1);
+		pbd2->tunnel_udp_hdr_start_w = skb_transport_offset(skb) >> 1;
+	}
 }
 
 /* called with netif_tx_lock

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12043,11 +12043,11 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 		NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |
 		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
 	if (!CHIP_IS_E1x(bp)) {
-		dev->hw_features |= NETIF_F_GSO_GRE;
+		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;
 		dev->hw_enc_features =
 			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
 			NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
-			NETIF_F_GSO_GRE;
+			NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;
 	}
 
 	dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
@@ -917,7 +917,7 @@ static int handle_offloads(struct sk_buff *skb)
 		if (unlikely(err))
 			return err;
 
-		skb_shinfo(skb)->gso_type |= (SKB_GSO_UDP_TUNNEL | SKB_GSO_UDP);
+		skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
 	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
 		skb->ip_summed = CHECKSUM_NONE;